Neogastropod Phylogeny: A Molecular Perspective

Partial 28S rDNA Sequences and the Antiquity of Hydrothermal Vent Endemic Gastropods

“…This agrees with the recent anatomical and cladistic examinations of Lindberg (1996, 1997). Harasewych et al (1997a) using 18S rDNA sequences also found inclusion of the Architaenioglossa within the Caenogastropoda. With our data, monophyly of the Architaenioglossa does not result in significant reduction in likelihood (Kishino and Hasegawa test, P Ͼ 0.05).…”

“…Examination of overall gastropod phylogeny would be better served by longer sequences from more conserved genes (e.g., 18S rDNA, Elongation Factor 1␣, ␤ Tubulin). For example, Harasewych et al (1997a) and Winnepenninckx et al (1998) supported Caenogastropoda monophyly using partial and complete 18S rDNA sequences, respectively.…”

A multilocus molecular phylogeny of Fasciolariidae (Neogastropoda: Buccinoidea)

“…Neogastropoda, the most diverse caenogastropod mollusk clade, is supported by morphology-based phylogenetic analyses (Ponder and Lindberg, 1997;Strong, 2003) and by a Bayesian inference analysis of a combined morphological and molecular data (Ponder et al, 2008), but it has been challenged in several molecular studies (Harasewych et al, 1997;Colgan et al, 2000Colgan et al, , 2003Colgan et al, , 2007. In their complete mitochondrial genome and three nuclear-gene phylogeny, Osca et al (2015) failed to recover Neogastropoda, and proposed the inclusion of Tonnoidea, or the exclusion of Cancellarioidea and possibly Volutidae from Neogastropoda.…”

Fossilized soft tissues in a Silurian platyceratid gastropod

“…Recent morphologically based phylogenetic analyses (Haszprunar 1988;Ponder & Lindberg 1997) placed the Patellogastropoda as the basal clade within the Gastropoda, inferring also a relatively basal position for the neritopsines. However these results are not well-supported by molecular data (Harasewych et al 1997;Colgan et al 2000Colgan et al , 2003, and the exact position of these taxa remains unclear.…”